Oldest Chasicotatus (Cingulata, Xenarthra) remains give a new approach to this lineage biochron and taxonomic status

Autores
Barasoain Goñi, Daniel; Luna, Carlos Alberto; Quiñones, Sofía Inés
Año de publicación
2020
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Eutatini armadillos are a tribe within the subfamily Euphractinae (Chlamyphoridae), characterized by large piliferous foramina and the absence of a well-defined carapace scapular buckler. Though there are no living representatives, they are present in the fossil record from late Eocene to Holocene deposits of southern South America. Here we report new materials (CTESPZ-7852, isolated osteoderms) assigned to the genus Chasicotatus Scillato-Yané from Cañadón del Tordillo site (Colloncuran SALMA) of Neuquén Province (Argentina). This represents the southern record of the genus and extends its biochron by ~6 Ma (previously recorded in ~9?10 Ma). Though the genus Stenotatus Ameghino was the only Eutatini recorded for the Colloncuran SALMA so far, remains are assigned to Chasicotatus according to traditional diagnosis based on dorsal carapace features; including a flat transitional zone between articular and caudal portions of mobile osteoderms, a more dorsal orientation of the piliferous foramina of the osteoderms, and a more extended main figure of osteoderms ornamentation, that reaches the posterior margin of the osteoderm, unlike in Stenotatus. These same characters have been used from the first descriptions of these taxa without being later discussed. However, it is to remark that the morphological variability that they present in current Euphractinae armadillos such as Chaetophractus villosus Desmarest, or even in other groups such as Dasypodinae or Tolypeutinae, suggests the future need of more detailed revisions in order to verify their validity and/or the identification of new more robust diagnostic characters that allow to keep supporting the validity of these two taxa.
Fil: Barasoain Goñi, Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; Argentina
Fil: Luna, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; Argentina
Fil: Quiñones, Sofía Inés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; Argentina
2nd Palaeontological Virtual Congress
España
Comité Organizador del 2nd Palaeontological Virtual Congress
Materia
Chasicotatus
Stenotatus
Collón Cura
Cañadón del Tordillo
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/237875
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/237875
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network_name_str CONICET Digital (CONICET)
spelling Oldest Chasicotatus (Cingulata, Xenarthra) remains give a new approach to this lineage biochron and taxonomic statusBarasoain Goñi, DanielLuna, Carlos AlbertoQuiñones, Sofía InésChasicotatusStenotatusCollón CuraCañadón del Tordillohttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Eutatini armadillos are a tribe within the subfamily Euphractinae (Chlamyphoridae), characterized by large piliferous foramina and the absence of a well-defined carapace scapular buckler. Though there are no living representatives, they are present in the fossil record from late Eocene to Holocene deposits of southern South America. Here we report new materials (CTESPZ-7852, isolated osteoderms) assigned to the genus Chasicotatus Scillato-Yané from Cañadón del Tordillo site (Colloncuran SALMA) of Neuquén Province (Argentina). This represents the southern record of the genus and extends its biochron by ~6 Ma (previously recorded in ~9?10 Ma). Though the genus Stenotatus Ameghino was the only Eutatini recorded for the Colloncuran SALMA so far, remains are assigned to Chasicotatus according to traditional diagnosis based on dorsal carapace features; including a flat transitional zone between articular and caudal portions of mobile osteoderms, a more dorsal orientation of the piliferous foramina of the osteoderms, and a more extended main figure of osteoderms ornamentation, that reaches the posterior margin of the osteoderm, unlike in Stenotatus. These same characters have been used from the first descriptions of these taxa without being later discussed. However, it is to remark that the morphological variability that they present in current Euphractinae armadillos such as Chaetophractus villosus Desmarest, or even in other groups such as Dasypodinae or Tolypeutinae, suggests the future need of more detailed revisions in order to verify their validity and/or the identification of new more robust diagnostic characters that allow to keep supporting the validity of these two taxa.Fil: Barasoain Goñi, Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; ArgentinaFil: Luna, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; ArgentinaFil: Quiñones, Sofía Inés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; Argentina2nd Palaeontological Virtual CongressEspañaComité Organizador del 2nd Palaeontological Virtual CongressComité Organizador del 2nd Palaeontological Virtual Congress2020info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectCongresoBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/237875Oldest Chasicotatus (Cingulata, Xenarthra) remains give a new approach to this lineage biochron and taxonomic status; 2nd Palaeontological Virtual Congress; España; 2020; 152-152978-84-09-20283-6CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://palaeovc.org/index.php/downloads/Internacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:09:49Zoai:ri.conicet.gov.ar:11336/237875instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:09:49.88CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Oldest Chasicotatus (Cingulata, Xenarthra) remains give a new approach to this lineage biochron and taxonomic status
title Oldest Chasicotatus (Cingulata, Xenarthra) remains give a new approach to this lineage biochron and taxonomic status
spellingShingle Oldest Chasicotatus (Cingulata, Xenarthra) remains give a new approach to this lineage biochron and taxonomic status
Barasoain Goñi, Daniel
Chasicotatus
Stenotatus
Collón Cura
Cañadón del Tordillo
title_short Oldest Chasicotatus (Cingulata, Xenarthra) remains give a new approach to this lineage biochron and taxonomic status
title_full Oldest Chasicotatus (Cingulata, Xenarthra) remains give a new approach to this lineage biochron and taxonomic status
title_fullStr Oldest Chasicotatus (Cingulata, Xenarthra) remains give a new approach to this lineage biochron and taxonomic status
title_full_unstemmed Oldest Chasicotatus (Cingulata, Xenarthra) remains give a new approach to this lineage biochron and taxonomic status
title_sort Oldest Chasicotatus (Cingulata, Xenarthra) remains give a new approach to this lineage biochron and taxonomic status
dc.creator.none.fl_str_mv Barasoain Goñi, Daniel
Luna, Carlos Alberto
Quiñones, Sofía Inés
author Barasoain Goñi, Daniel
author_facet Barasoain Goñi, Daniel
Luna, Carlos Alberto
Quiñones, Sofía Inés
author_role author
author2 Luna, Carlos Alberto
Quiñones, Sofía Inés
author2_role author
author
dc.subject.none.fl_str_mv Chasicotatus
Stenotatus
Collón Cura
Cañadón del Tordillo
topic Chasicotatus
Stenotatus
Collón Cura
Cañadón del Tordillo
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Eutatini armadillos are a tribe within the subfamily Euphractinae (Chlamyphoridae), characterized by large piliferous foramina and the absence of a well-defined carapace scapular buckler. Though there are no living representatives, they are present in the fossil record from late Eocene to Holocene deposits of southern South America. Here we report new materials (CTESPZ-7852, isolated osteoderms) assigned to the genus Chasicotatus Scillato-Yané from Cañadón del Tordillo site (Colloncuran SALMA) of Neuquén Province (Argentina). This represents the southern record of the genus and extends its biochron by ~6 Ma (previously recorded in ~9?10 Ma). Though the genus Stenotatus Ameghino was the only Eutatini recorded for the Colloncuran SALMA so far, remains are assigned to Chasicotatus according to traditional diagnosis based on dorsal carapace features; including a flat transitional zone between articular and caudal portions of mobile osteoderms, a more dorsal orientation of the piliferous foramina of the osteoderms, and a more extended main figure of osteoderms ornamentation, that reaches the posterior margin of the osteoderm, unlike in Stenotatus. These same characters have been used from the first descriptions of these taxa without being later discussed. However, it is to remark that the morphological variability that they present in current Euphractinae armadillos such as Chaetophractus villosus Desmarest, or even in other groups such as Dasypodinae or Tolypeutinae, suggests the future need of more detailed revisions in order to verify their validity and/or the identification of new more robust diagnostic characters that allow to keep supporting the validity of these two taxa.
Fil: Barasoain Goñi, Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; Argentina
Fil: Luna, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; Argentina
Fil: Quiñones, Sofía Inés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; Argentina
2nd Palaeontological Virtual Congress
España
Comité Organizador del 2nd Palaeontological Virtual Congress
description Eutatini armadillos are a tribe within the subfamily Euphractinae (Chlamyphoridae), characterized by large piliferous foramina and the absence of a well-defined carapace scapular buckler. Though there are no living representatives, they are present in the fossil record from late Eocene to Holocene deposits of southern South America. Here we report new materials (CTESPZ-7852, isolated osteoderms) assigned to the genus Chasicotatus Scillato-Yané from Cañadón del Tordillo site (Colloncuran SALMA) of Neuquén Province (Argentina). This represents the southern record of the genus and extends its biochron by ~6 Ma (previously recorded in ~9?10 Ma). Though the genus Stenotatus Ameghino was the only Eutatini recorded for the Colloncuran SALMA so far, remains are assigned to Chasicotatus according to traditional diagnosis based on dorsal carapace features; including a flat transitional zone between articular and caudal portions of mobile osteoderms, a more dorsal orientation of the piliferous foramina of the osteoderms, and a more extended main figure of osteoderms ornamentation, that reaches the posterior margin of the osteoderm, unlike in Stenotatus. These same characters have been used from the first descriptions of these taxa without being later discussed. However, it is to remark that the morphological variability that they present in current Euphractinae armadillos such as Chaetophractus villosus Desmarest, or even in other groups such as Dasypodinae or Tolypeutinae, suggests the future need of more detailed revisions in order to verify their validity and/or the identification of new more robust diagnostic characters that allow to keep supporting the validity of these two taxa.
publishDate 2020
dc.date.none.fl_str_mv 2020
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Congreso
Book
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/237875
Oldest Chasicotatus (Cingulata, Xenarthra) remains give a new approach to this lineage biochron and taxonomic status; 2nd Palaeontological Virtual Congress; España; 2020; 152-152
978-84-09-20283-6
CONICET Digital
CONICET
url http://hdl.handle.net/11336/237875
identifier_str_mv Oldest Chasicotatus (Cingulata, Xenarthra) remains give a new approach to this lineage biochron and taxonomic status; 2nd Palaeontological Virtual Congress; España; 2020; 152-152
978-84-09-20283-6
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://palaeovc.org/index.php/downloads/
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
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dc.coverage.none.fl_str_mv Internacional
dc.publisher.none.fl_str_mv Comité Organizador del 2nd Palaeontological Virtual Congress
publisher.none.fl_str_mv Comité Organizador del 2nd Palaeontological Virtual Congress
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
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repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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